import { PrimaryKey } from 'fastapi-rtk/api-types';
/**
 * Retrieves the item's identifier, preferring the 'id_' property and falling back to 'id'.
 *
 * @param item - The item object from which to retrieve the identifier.
 * @returns The identifier from the item, or undefined if neither property exists.
 */
interface ItemLike {
    id_?: PrimaryKey | null;
    id?: PrimaryKey | null;
}
export declare const getItemId: (item: ItemLike | null | undefined) => PrimaryKey | undefined;
export {};